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Disclosery

TS TENARIS S A

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ADR (ADR), issuer CIK 1190723

262 managers (265 13F filers) reported a position in TS shares at 2026-03-31, 39,333,078 shares in all. 66 filers opened a position and 32 filers sold out during the quarter.

Managers
262
13F filers
265
New
66
Added
87
Reduced
66
Sold out
32
Shares held by filers
39,333,078

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
FMR LLCin group FMR LLC8,251,759$480M0.03%+6,053,12613F-HRTimelineGroup
Westwood Global Investments, LLC6,673,718$388M14.47%-598,68613F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC3,199,744$186M0.29%+235,40013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP2,893,032$168M0.13%+873,84713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…2,405,034$140M0.03%-277,10313F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/1,445,210$84.1M0.01%-204,51413F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,178,069$68.5M<0.01%+8,38113F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.1,168,472$68M0.01%+622,26813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,121,007$65.2M0.01%-113,82113F-HRTimelineGroup
Driehaus Capital Management LLC888,346$51.7M0.38%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC720,894$41.9M0.01%-98,68213F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.715,791$41.6M<0.01%+19,34713F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…646,854$38.1M0.01%-9,58513F-HRTimelineGroup
CWA Asset Management Group, LLC506,550$29.5M1.01%new13F-HRTimeline
UBS Group AGgroup of 2 filers holding505,850$29.4M+281,866Timeline
ASSETMARK, INCin group ASSETMARK, INC490,777$28.6M0.06%-13,14013F-HRTimelineGroup
Grantham, Mayo, Van Otterloo & Co. LLC347,584$20.2M0.05%+15,34613F-HRTimeline
Carrhae Capital LLPin group Carrhae Capital LLP337,428$19.6M1.39%new13F-HRTimelineGroup
Harding Loevner LP292,858$17M0.18%-18,42413F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC292,423$17M0.01%-639,97313F-HRTimelineGroup
Medina Value Partners, LLC253,362$14.7M3.09%-308,13313F-HRTimeline
Capital Wealth Planning, LLC240,514$14M0.08%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP217,898$12.7M<0.01%-7,12313F-HRTimelineGroup
Kiltearn Partners LLP204,859$11.9M3.21%-44,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP203,178$11.8M<0.01%+2,51713F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…178,439$10.4M0.02%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/158,437$9.22M<0.01%-178,78113F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc146,515$8.52M<0.01%-21,52813F-HRTimelineGroup
Quantinno Capital Management LP146,347$8.51M0.01%+25,27113F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/145,855$8.48M0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC145,427$8.46M<0.01%+34,57013F-HRTimelineGroup
Ethic Inc.125,572$7.31M0.11%-18,55213F-HRTimeline
FEARNLEY ASSET MANAGEMENT AS112,700$6.56M2.14%+64,70013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC100,838$5.87M0.01%new13F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC100,738$5.86M0.04%-1,39513F-HRTimeline
Aventail Capital Group, LP87,367$5.08M0.25%+26,20413F-HRTimeline
LEUTHOLD GROUP, LLC83,994$4.89M0.52%new13F-HRTimeline
Creative Planningin group Creative Planning72,820$4.24M<0.01%+15,00813F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC68,723$4M<0.01%-87,48313F-HRTimelineGroup
Integrated Quantitative Investments LLC66,798$3.89M0.7%+23,97913F-HRTimeline
GTS SECURITIES LLC62,686$3.65M0.13%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC61,446$3.57M<0.01%+13,41113F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC58,252$3.39M0.01%+28413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co57,342$3.34M<0.01%+5,55813F-HRTimelineGroup
MANNING & NAPIER ADVISORS LLC52,491$3.05M0.04%-1,41713F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC49,646$2.89M0.02%+13,47713F-HRTimelineGroup
Crossmark Global Holdings, Inc.48,485$2.82M0.04%-1,25113F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding47,372$2.76M+24,643Timeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC44,417$2.58M0.01%-8,31913F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN44,387$2.58M<0.01%+35,66313F-HR/ATimelineGroup
HIGHLAND CAPITAL MANAGEMENT, LLC43,920$2.56M0.14%-15013F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC43,041$2.5M0.02%+25,79113F-HRTimelineGroup
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…42,500$2.47M0.09%+6,50013F-HRTimelineGroup
Campbell & CO Investment Adviser LLC41,043$2.39M0.14%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC40,307$2.34M<0.01%+9,08213F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC40,287$2.34M0.01%+1,50013F-HRTimelineGroup
HRT FINANCIAL LP39,774$2.31M0.01%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV33,637$1.96M<0.01%-6,55513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND33,399$1.94M<0.01%-9,42013F-HRTimeline
Brooklyn Investment Group32,676$1.9M0.06%+14,80013F-HRTimeline
Caitong International Asset Management …32,213$1.87M0.35%+32,20713F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC31,623$1.84M<0.01%+1,57213F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/30,336$1.76M<0.01%+24,65013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC28,734$1.67M<0.01%+11,20913F-HRTimelineGroup
Bridgewater Associates, LP28,630$1.67M0.01%new13F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC28,363$1.65M<0.01%-29913F-HRTimelineGroup
Mork Capital Management, LLC28,320$1.65M1.17%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO26,728$1.56M<0.01%+6,49613F-HRTimelineGroup
CSS LLC/IL26,650$1.55M0.09%-7,43013F-HRTimeline
TD Waterhouse Canada Inc.26,422$1.53M<0.01%+13,51513F-HRTimeline
LPL Financial LLC25,442$1.48M<0.01%+4,97113F-HRTimeline
VIKING FUND MANAGEMENT LLC25,000$1.45M0.15%-3,00013F-HRTimeline
Hennion & Walsh Asset Management, Inc.24,042$1.4M0.05%-82813F-HRTimeline
Callan Family Office, LLCin group Callan Family Office, LLC23,970$1.39M0.03%+32713F-HRTimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC23,948$1.39M0.03%+79113F-HRTimeline
Cadence Wealth Management LLC23,710$1.38M0.58%+1,69813F-HRTimeline
Corient Private Wealth LPgroup of 2 filers holding24,070$1.38M+2,258Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC23,446$1.36M<0.01%+55013F-HR/ATimelineGroup
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…23,295$1.36M0.03%-19913F-HRTimelineGroup
FORA Capital, LLC22,994$1.34M0.1%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…22,712$1.32M<0.01%-6,87413F-HRTimelineGroup
Walleye Trading LLCin group Walleye Capital LLC22,182$1.29M0.03%new13F-HRTimelineGroup
Beck Bode, LLC21,154$1.23M0.21%+1,85513F-HRTimeline
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)20,000$1.16M0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO18,997$1.09M<0.01%-41813F-HR/ATimelineGroup
HANTZ FINANCIAL SERVICES, INC.18,571$1.08M0.02%+3,05413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Tidal Investments LLCin group Tidal Investments LLC18,477$1.07M<0.01%+1,26413F-HRTimelineGroup
SIGNATUREFD, LLC18,426$1.07M0.02%-15813F-HRTimeline
North of South Capital LLP18,087$1.05M0.09%new13F-HRTimeline
Sanctuary Advisors, LLC17,631$1.03M0.01%new13F-HRTimeline
Illumine Investment Management, LLC17,603$1.02M0.79%new13F-HRTimeline
CHESAPEAKE CAPITAL CORP /IL/17,281$1.01M0.72%+99413F-HRTimeline
THORNBURG INVESTMENT MANAGEMENT INC16,792$977K0.01%-4,50513F-HRTimeline
NAPLES GLOBAL ADVISORS, LLC16,660$969K0.07%+35013F-HRTimeline
IEQ CAPITAL, LLC16,634$968K<0.01%+1,59513F-HRTimeline
TWO SIGMA SECURITIES, LLC16,317$949K0.11%new13F-HRTimeline
HENNESSY ADVISORS INC16,200$943K0.03%+4,20013F-HRTimeline
IMC-Chicago, LLC15,003$873K0.01%new13F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.14,970$871K0.01%-2,63913F-HRTimeline
QUADRANT CAPITAL GROUP LLC14,452$841K0.03%+74313F-HR/ATimeline
US BANCORP \DE\in group US BANCORP \DE\14,353$835K<0.01%-5,48113F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd14,337$834K0.01%-87,50713F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP14,304$832K<0.01%+7,91213F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…13,362$777K<0.01%+2,52713F-HRTimelineGroup
ALTRINSIC GLOBAL ADVISORS LLC13,253$771K0.03%-95613F-HRTimeline
Dynasty Wealth Management, LLC13,232$770K0.01%-1,61613F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp13,100$762K<0.01%+63013F-HRTimelineGroup
1832 Asset Management L.P.12,775$743K<0.01%013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC12,355$719K<0.01%-42213F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …12,217$711K<0.01%new13F-HRTimelineGroup
J2 Capital Management Inc12,116$705K0.48%-3,58213F-HRTimeline
HighTower Advisors, LLC11,588$674K<0.01%-66113F-HRTimeline
PROFUND ADVISORS LLC11,368$661K0.02%-1,77013F-HRTimeline
ExodusPoint Capital Management, LP11,363$661K0.01%new13F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.11,153$638K0.11%new13F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth10,605$617K<0.01%+2,95013F-HRTimelineGroup
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…9,974$580K<0.01%-29213F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA9,695$564K<0.01%-59,16213F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC9,548$556K0.01%013F-HRTimeline
Gallo Partners, LP9,483$552K1.06%new13F-HRTimeline
Jackson Hole Capital Partners, LLC9,239$538K0.09%013F-HRTimeline
GROUP ONE TRADING LLC8,713$507K0.02%+6,57413F-HRTimeline
Strategic Investment Advisors / MI8,518$496K0.03%-98713F-HRTimeline
GSA CAPITAL PARTNERS LLP8,074$470K0.03%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP8,000$465K<0.01%new13F-HRTimelineGroup
BSW Wealth Partners7,903$460K0.06%-2113F-HRTimeline
Sivia Capital Partners, LLC7,859$457K0.09%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP7,594$442K<0.01%013F-HRTimelineGroup
New Vernon Capital Holdings II LLCin group New Vernon Capital Holdings I…7,581$441K0.33%013F-HRTimelineGroup
Centiva Capital, LP7,501$436K0.02%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…7,239$421K<0.01%+41613F-HRTimelineGroup
SG Americas Securities, LLC7,002$407K<0.01%new13F-HRTimeline
Merit Financial Group, LLC6,959$405K<0.01%new13F-HRTimeline
Caprock Group, LLC6,808$396K0.01%-8,75713F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…6,798$395K<0.01%-1,50313F-HRTimeline
Sequoia Financial Advisors, LLC6,764$394K<0.01%+10313F-HRTimeline
Integrated Wealth Concepts LLC6,750$393K<0.01%-12,13113F-HRTimeline
Baron Wealth Management LLC6,732$392K0.12%+16913F-HRTimeline
Aaron Wealth Advisors LLC6,653$387K0.02%+1,20313F-HRTimeline
Sanchez Gaunt Capital Management, LLC6,581$383K0.24%13F-HRTimeline
Cetera Investment Advisers6,558$382K<0.01%+11213F-HRTimeline
Trek Financial, LLC6,531$380K0.02%new13F-HRTimeline
GREENLEAF TRUST6,495$378K<0.01%+49113F-HRTimeline
RHUMBLINE ADVISERS6,435$374K<0.01%+45813F-HRTimeline
Ballentine Partners, LLC6,369$371K0.01%+81013F-HRTimeline
R Squared Ltd6,246$363K0.2%-6,74613F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS6,049$352K<0.01%-28,10713F-HRTimelineGroup
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…5,981$348K<0.01%-33513F-HRTimelineGroup
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA5,820$339K<0.01%+613F-HRTimelineGroup
Rossby Financial, LCC5,615$325K0.07%-3413F-HRTimeline
Lester Murray Antman dba SimplyRich5,600$325K0.08%new13F-HRTimeline
Versant Capital Management, Inc5,248$305K0.03%+58713F-HRTimeline
Pinnacle Wealth Planning Services, Inc.5,174$301K0.03%-1,00413F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…5,100$297K0.01%+1,14213F-HR/ATimelineGroup
MGO ONE SEVEN LLC5,036$293K0.01%-96713F-HRTimeline
Parallel Advisors, LLC4,971$289K0.01%+1,30613F-HR/ATimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…4,925$287K<0.01%+3,12313F-HRTimelineGroup
EVOLVE PRIVATE WEALTH, LLC4,920$286K0.02%new13F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …4,818$280K<0.01%new13F-HRTimelineGroup
CHOREO, LLC4,600$268K<0.01%new13F-HRTimeline
Cambridge Investment Research Advisors,…4,318$251K<0.01%new13F-HRTimeline
Stirlingshire Investments, Inc.4,040$235K0.21%new13F-HRTimeline
Basecamp Wealth Advisors LLC4,024$234K0.05%-2213F-HRTimeline
Advyzon Investment Management, LLC4,013$233K0.02%new13F-HRTimeline
SYON CAPITAL LLC3,995$232K0.01%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC3,837$223K<0.01%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources3,778$220K<0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC3,730$217K<0.01%new13F-HRTimelineGroup
Fayez Sarofim & Coin group Fayez Sarofim & Co3,658$213K<0.01%new13F-HRTimelineGroup
PDS Planning, Inc3,593$209K0.01%new13F-HRTimeline
Larry Mathis Financial Planning, LLC3,573$208K0.19%new13F-HRTimeline
D'Orazio & Associates, Inc.3,499$204K0.03%new13F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…3,298$192K0.05%-96313F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,050$176K<0.01%+93913F-HRTimelineGroup
Farther Finance Advisors, LLC2,506$145K<0.01%+17213F-HRTimeline
GAMMA Investing LLC2,180$127K0.01%+36813F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP2,142$125K<0.01%+1,74813F-HRTimelineGroup
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO1,966$114K<0.01%+1,84113F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,777$103K<0.01%+23313F-HRTimelineGroup
AdvisorNet Financial, Inc1,765$103K0.01%013F-HRTimeline
Advisory Services Network, LLC1,685$98K<0.01%new13F-HRTimeline
Smartleaf Asset Management LLC1,657$94.8K<0.01%-5013F-HRTimeline
Covestor Ltd1,575$92K0.06%013F-HRTimeline
Cromwell Holdings LLC1,578$91.8K0.05%013F-HRTimeline
Advisors Asset Management, Inc.1,533$89.2K<0.01%-2,40113F-HRTimeline
Community Bank, N.A.1,000$58.2K0.01%013F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC999$58.1K<0.01%-57713F-HRTimeline
Blue Trust, Inc.873$50.8K<0.01%+14213F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.853$49.7K<0.01%-20813F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…772$44.9K<0.01%+11713F-HRTimelineGroup
Bayforest Capital Ltd589$34.3K0.04%new13F-HRTimeline
MAI Capital Management519$30.2K<0.01%+29713F-HRTimeline
PALLADIEM, LLC460$27.2K0.03%013F-HRTimeline
Sound Income Strategies, LLC448$26K<0.01%013F-HRTimeline
Ares Financial Consulting, LLC446$25.8K0.02%new13F-HRTimeline
Owl Creek Wealth Partners LLC432$25.1K0.01%13F-HRTimeline
WealthCollab, LLC397$23.1K0.01%013F-HRTimeline
True Wealth Design, LLC353$20.5K0.01%+9013F-HRTimeline
ROTHSCHILD INVESTMENT LLC320$18.6K<0.01%+313F-HRTimeline
Bruce G. Allen Investments, LLC316$18.4K0.01%013F-HRTimeline